Disaster management involves preparing for, responding to, and rebuilding after disasters. It aims to reduce risks and impacts through mitigation, preparedness, response, and recovery efforts. Mitigation attempts to prevent or lessen disasters, preparedness develops emergency plans, response mobilizes services during disasters, and recovery restores affected areas after immediate needs are addressed. In India, the National Disaster Management Agency leads these efforts through strategic risk management, community participation, and collaboration with earth scientists.

3. DISASTER MANAGEMENT
 Disaster management) is the discipline of dealing with and avoiding
risks. It is a discipline that involves preparing for disaster before it
occurs, disaster response (e.g. emergency evacuation, quarantine, mass
decontamination, etc.), as well as supporting, and rebuilding society
after natural or human-made disasters have occurred. In general, any
Emergency management is the continuous process by which all
individuals, groups, and communities manage hazards in an effort to
avoid or ameliorate the impact of disasters resulting from the hazards.
Actions taken depend in part on perceptions of risk of those exposed.
Effective emergency management relies on thorough integration of
emergency plans at all levels of government and non-government
involvement. Activities at each level (individual, group, community)
affect the other levels. It is common to place the responsibility for
governmental emergency management with the institutions for civil
defense or within the conventional structure of the emergency services.
In the private sector, emergency management is sometimes referred to
as business continuity planning.

5.  Disaster Management is one of a number of terms which, since
the end of the ColdWar, have largely replaced Civil defense,
whose original focus was protecting civilians from military attack.
Modern thinking focuses on a more general intent to protect the
civilian population in times of peace as well as in times of war.
Another current term, Civil Protection is widely used within the
European Union and refers to government-approved systems
and resources whose task is to protect the civilian population,
primarily in the event of natural and human-made disasters.
Within EU countries the term Crisis Management emphasizes the
political and security dimension rather than measures to satisfy
the immediate needs of the civilian population. An academic
trend is towards using the term disaster risk reduction,
particularly for emergency management in a development
management context.This focuses on the mitigation and
preparedness aspects of the emergency cycle (see below).

7. Phases and professional activities
 The nature of management depends on local
economic and social conditions. Some disaster
relief experts such as Fred Cluny have noted that
in a sense the only real disasters are economic.
Experts have long noted that the cycle of
emergency management must include long-
term work on infrastructure, public awareness,
and even human justice issues. This is
particularly important in developing nations. The
process of emergency management involves
four phases: mitigation, preparedness, response,
and recovery.

10. Mitigation
 Mitigation efforts attempt to prevent hazards from
developing into disasters altogether, or to reduce
the effects of disasters when they occur. The
mitigation phase differs from the other phases
because it focuses on long-term measures for
reducing or eliminating risk. The implementation
of mitigation strategies can be considered a part of
the recovery process some structural if applied
after a disaster occurs.[mitigation measures may
have adverse effects on the ecosystem.

12.  Imitative measures can be structural or non-
structural. Structural measures use technological
solutions, like flood levees. Non-structural measures
include legislation, land-use planning (e.g. the
designation of nonessential land like parks to be
used as flood zones), and insurance. Mitigation is the
most cost-efficient method for reducing the impact
of hazards, however it is not always suitable.
Mitigation does include providing regulations
regarding evacuation, sanctions against those who
refuse to obey the regulations (such as mandatory
evacuations), and communication of potential risks
to the public

14. Preparedness
 In the preparedness phase, emergency managers
develop plans of action for when the disaster strikes.
Common preparedness measures include:
 communication plans with easily understandable
terminology and methods.
 proper maintenance and training of emergency
services, including mass human resources such as
community emergency response teams.
 development and exercise of emergency population
warning methods combined with emergency
shelters and evacuation plans.
 stockpiling, inventory, and maintain disaster
supplies and equipment.

16. Response
 The response phase includes the mobilization of the necessary
emergency services and first responders in the disaster area.
This is likely to include a first wave of core emergency services,
such as firefighters, police and ambulance crews. When
conducted as a military operation, it is termed Disaster Relief
Operation (DRO) and can be a follow-up to a Non-combatant
evacuation operation (NEO). They may be supported by a
number of secondary emergency services, such as specialist
rescue teams.
 A well rehearsed emergency plan developed as part of the
preparedness phase enables efficient coordination of rescue
Where required, search and rescue efforts commence at an
early stage. Depending on injuries sustained by the victim,
outside temperature, and victim access to air and water, the
vast majority of those affected by a disaster will die within 72
hours after impact.

18. Recovery
 The aim of the recovery phase is to restore the affected
area to its previous state. It differs from the response phase
in its focus; recovery efforts are concerned with issues and
decisions that must be made after immediate needs are
addressed. Recovery efforts are primarily concerned with
actions that involve rebuilding destroyed property, re-
employment, and the repair of other essential
infrastructure. An important aspect of effective recovery
efforts is taking advantage of a ‘window of opportunity’ for
the implementation of mitigative measures that might
otherwise be unpopular. Citizens of the affected area are
more likely to accept more mitigative changes when a
recent disaster is in fresh memory.

20. Disaster management in INDIA
 In India, the role of emergency management falls
to National Disaster Management of India, a
government agency subordinate to the Ministry
of Home affairs. In recent years there has been a
shift in emphasis, from response and recovery to
strategic risk management and reduction, and
from a government-centred approach to
decentralized community participation.Survey of
India, an agency within the Ministry of Science
andTechnology, is also playing a role in this field,
through bringing the academic knowledge and
research expertise of earth scientists to the
emergency management process.